/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,ul,ol,dl{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
table{border-collapse:collapse}

/* ===== 变量 ===== */
:root{
  --night:#061F1A;
  --night-deep:#04150F;
  --teal-deep:#082E2B;
  --jade:#0F5C49;
  --lime:#C6FF3D;
  --lime-soft:#E4FF9A;
  --red:#FF4D4F;
  --orange:#FF9F1C;
  --ivory:#F4F1E8;
  --sage:#9BB0A8;
  --wine:#4A1B2A;
  --indigo:#161A38;
  --line:rgba(155,176,168,.22);
  --line-strong:rgba(155,176,168,.45);
  --rail-w:84px;
  --bar-h:68px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --scroll-progress:0;
}

/* ===== 中文排版与页面底色 ===== */
body{
  min-height:100vh;
  padding-left:var(--rail-w);
  padding-top:var(--bar-h);
  background-color:var(--night);
  background-image:
    linear-gradient(to right,rgba(155,176,168,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(155,176,168,.055) 1px,transparent 1px);
  background-size:64px 64px;
  background-position:center top;
  color:var(--ivory);
  font-family:var(--font-sans);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--lime);color:#06231B}
h1,h2,h3,h4,h5,h6{font-weight:900;line-height:1.06;letter-spacing:-.02em}
h1{font-size:clamp(40px,6vw,88px)}
h2{font-size:clamp(28px,3.6vw,44px)}
h3{font-size:clamp(20px,2.2vw,26px)}
strong{font-weight:700;color:var(--ivory)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:1px}

/* ===== 通用容器与节奏 ===== */
.container{width:100%;max-width:1440px;margin-inline:auto;padding-inline:48px}
.section{padding-block:clamp(48px,7vw,96px)}
.rule{height:1px;border:0;background:var(--line);width:100%}
.mono{font-family:var(--font-mono);letter-spacing:.05em}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--lime)}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor;flex:0 0 auto}

/* ===== 网格 ===== */
.grid{display:grid;gap:24px}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr));gap:22px 24px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  padding:14px 24px;border:1px solid var(--line-strong);border-radius:2px;
  font-family:var(--font-sans);font-size:15px;font-weight:700;letter-spacing:.02em;
  color:var(--ivory);background:transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--lime);border-color:var(--lime);color:#06231B}
.btn--primary:hover{background:var(--lime-soft);border-color:var(--lime-soft)}
.btn--ghost{border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn--sm{padding:9px 16px;font-size:13px}

/* ===== 面包屑 ===== */
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--sage)}
.breadcrumbs a{color:var(--sage);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.breadcrumbs a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.breadcrumbs__sep{color:rgba(155,176,168,.5)}
.breadcrumbs [aria-current="page"]{color:var(--ivory)}

/* ===== 正文 ===== */
.prose{max-width:74ch}
.prose p{max-width:38em;margin:0 0 1.15em;color:rgba(244,241,232,.88)}
.prose h2{font-size:clamp(26px,3.4vw,38px);margin:1.8em 0 .5em}
.prose h3{font-size:clamp(19px,2vw,24px);margin:1.6em 0 .4em}
.prose ul{display:grid;gap:.55em;margin:0 0 1.4em;max-width:38em}
.prose li{position:relative;padding-left:1.5em;color:rgba(244,241,232,.88)}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:10px;height:1px;background:var(--lime)}
.prose a{color:var(--lime);border-bottom:1px solid rgba(198,255,61,.4)}
.prose a:hover{border-bottom-color:var(--lime)}
.prose strong{color:var(--ivory)}

/* ===== 状态标签 ===== */
.status-chip{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  padding:4px 9px;border:1px solid currentColor;border-radius:2px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;line-height:1.5;
}
.status-chip::before{content:"";width:6px;height:6px;flex:0 0 auto;background:currentColor}
.status-chip--red{color:var(--red)}
.status-chip--amber{color:var(--orange)}
.status-chip--lime{color:var(--lime)}
.status-chip--muted{color:var(--sage)}

/* ===== 筛选 ===== */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px}
.filter-chip{
  padding:7px 14px;border:1px solid var(--line-strong);border-radius:2px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--sage);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.filter-chip:hover{color:var(--ivory);border-color:var(--ivory)}
.filter-chip[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);color:#06231B}

/* ===== 图片容器基础规则 ===== */
.media-frame{
  position:relative;display:block;overflow:hidden;
  background:var(--teal-deep);border:1px solid var(--line);
  aspect-ratio:16/10;
}
.media-frame img{width:100%;height:100%;object-fit:cover;object-position:center}
.media-frame figcaption{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--sage);padding-top:10px;
}
.media-frame__tag{
  position:absolute;left:0;bottom:0;
  padding:6px 12px;background:rgba(198,255,61,.88);color:#06231B;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;line-height:1.4;
}
.media-frame::after{
  content:"";position:absolute;right:10px;top:10px;width:14px;height:14px;
  border-top:1px solid rgba(198,255,61,.85);border-right:1px solid rgba(198,255,61,.85);
  pointer-events:none;
}

/* ===== 滚动显现协议 ===== */
.js-ready [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);transition-delay:var(--reveal-delay,0s)}
.js-ready [data-reveal].is-visible{opacity:1;transform:none}

/* ===== 跳过链接 ===== */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:10px 18px;border-radius:2px;
  background:var(--lime);color:#06231B;
  font-family:var(--font-sans);font-size:14px;font-weight:800;letter-spacing:.02em;
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ===== 页头骨架 ===== */
.site-header{position:relative;z-index:90}

.rail-badge{
  position:fixed;top:0;left:0;z-index:85;
  width:var(--rail-w);height:var(--bar-h);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  background:var(--night-deep);
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.rail-badge__mark{position:relative;width:14px;height:14px;border:1px solid var(--lime)}
.rail-badge__mark::before{content:"";position:absolute;top:-5px;bottom:-5px;left:50%;width:1px;background:var(--lime);transform:translateX(-.5px)}
.rail-badge__mark::after{content:"";position:absolute;left:-5px;right:-5px;top:50%;height:1px;background:var(--lime);transform:translateY(-.5px)}
.rail-badge__code{font-family:var(--font-mono);font-size:9px;letter-spacing:.22em;color:var(--sage)}

.site-header__bar{
  position:fixed;top:0;left:var(--rail-w);right:0;z-index:85;
  height:var(--bar-h);
  display:flex;align-items:center;gap:24px;
  padding:0 48px 0 32px;
  background:var(--night);
  border-bottom:1px solid var(--line);
}

.brand{display:flex;align-items:center;gap:14px;min-width:0}
.brand__mark{
  width:38px;height:38px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--lime);color:#06231B;
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.02em;
  clip-path:polygon(14% 0,100% 0,86% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand__name{font-size:16px;font-weight:900;letter-spacing:.01em;white-space:nowrap}
.brand__tag{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;color:var(--sage);white-space:nowrap}

.header-tools{display:flex;align-items:center;gap:4px;margin-left:auto}
.header-tools__link{
  padding:8px 12px;border-bottom:1px solid transparent;
  font-size:13.5px;font-weight:500;color:var(--sage);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.header-tools__link:hover{color:var(--lime);border-bottom-color:var(--lime)}
.header-tools__cta{
  margin-left:10px;padding:10px 20px;
  background:var(--lime);color:#06231B;
  font-size:13px;font-weight:800;letter-spacing:.02em;
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
  transition:background .22s var(--ease);
}
.header-tools__cta:hover{background:var(--lime-soft)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  margin-left:auto;padding:10px 14px;
  border:1px solid var(--line-strong);border-radius:2px;
  color:var(--ivory);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
}
.nav-toggle__label{line-height:1}
.nav-toggle__box{display:grid;gap:4px;width:18px}
.nav-toggle__box span{display:block;height:2px;background:var(--lime);transition:transform .26s var(--ease),opacity .18s linear}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 侧边轨道导航 ===== */
.site-nav{
  position:fixed;top:var(--bar-h);bottom:0;left:0;z-index:80;
  width:var(--rail-w);
  display:flex;flex-direction:column;
  background:var(--teal-deep);
  border-right:1px solid var(--line);
  overflow:hidden;
  transition:width .3s var(--ease);
}
.site-nav__list{flex:1 1 auto;display:flex;flex-direction:column;padding:14px 0;gap:2px;min-height:0;overflow:hidden}
.site-nav__item{flex:0 0 auto}
.site-nav__link{
  position:relative;display:flex;align-items:center;gap:14px;
  height:58px;padding-left:26px;
  border-left:2px solid transparent;
  color:rgba(244,241,232,.86);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.site-nav__link:hover{background:rgba(198,255,61,.07);color:var(--ivory)}
.site-nav__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--sage);min-width:20px;transition:color .2s var(--ease)}
.site-nav__label{
  font-size:14px;font-weight:600;
  opacity:0;transform:translateX(-8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.site-nav__link[aria-current="page"]{border-left-color:var(--lime);background:rgba(198,255,61,.1);color:var(--lime)}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--lime)}
.site-nav__link[aria-current="page"] .site-nav__label{font-weight:800}
.site-nav__foot{
  flex:0 0 auto;display:flex;align-items:center;gap:0;
  padding:16px 22px 22px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;
  color:var(--sage);white-space:nowrap;line-height:1.8;
}
.site-nav__pulse{
  display:inline-block;width:6px;height:6px;margin-right:8px;flex:0 0 auto;
  border-radius:50%;background:var(--lime);
  animation:nav-pulse 2.6s var(--ease) infinite;
}
@keyframes nav-pulse{
  0%{box-shadow:0 0 0 0 rgba(198,255,61,.45)}
  70%{box-shadow:0 0 0 9px rgba(198,255,61,0)}
  100%{box-shadow:0 0 0 0 rgba(198,255,61,0)}
}

/* ===== 滚动进度 ===== */
.scroll-meter{position:fixed;left:var(--rail-w);right:0;top:var(--bar-h);height:2px;z-index:75;pointer-events:none;background:rgba(155,176,168,.12)}
.scroll-meter__bar{display:block;height:100%;transform-origin:0 50%;transform:scaleX(var(--scroll-progress,0));background:linear-gradient(90deg,var(--jade),var(--lime));transition:transform .12s linear}

/* ===== 抽屉滚动锁 ===== */
body.has-drawer{overflow:hidden}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(56px,8vw,112px);
  background:linear-gradient(180deg,var(--night) 0%,var(--night-deep) 78%,#03100B 100%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:5px;
  background:repeating-linear-gradient(90deg,var(--lime) 0 20px,transparent 20px 40px);
  opacity:.45;
}
.site-footer__inner{
  max-width:1440px;margin-inline:auto;
  padding:76px 48px 0;
  display:grid;grid-template-columns:1.15fr 1.6fr;gap:56px;
}
.site-footer__wordmark{font-size:26px;font-weight:900;letter-spacing:-.01em;line-height:1.2}
.site-footer__summary{margin-top:14px;max-width:34ch;font-size:15px;line-height:1.8;color:var(--sage)}
.site-footer__contact{
  margin-top:28px;display:grid;gap:6px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em;line-height:1.75;
  color:rgba(244,241,232,.9);
}
.site-footer__addr{color:var(--sage);max-width:30ch}
.site-footer__cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.site-footer__col{min-width:0}
.site-footer__col-title{
  margin:0 0 16px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.16em;
  color:var(--lime);text-transform:uppercase;
}
.site-footer__links{display:grid;gap:11px}
.site-footer__links a{
  font-size:14.5px;color:rgba(244,241,232,.86);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.site-footer__links a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.site-footer__bar{
  max-width:1440px;margin:56px auto 0;
  padding:22px 48px 34px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 28px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.05em;color:var(--sage);
}
.site-footer__copy{color:rgba(244,241,232,.8)}
.site-footer__icp{color:var(--sage)}
.site-footer__legal{display:flex;flex-wrap:wrap;gap:20px;margin-left:auto}
.site-footer__legal a{transition:color .2s var(--ease)}
.site-footer__legal a:hover{color:var(--lime)}

/* ===== 桌面轨道展开 ===== */
@media (min-width:901px){
  .site-nav:hover,.site-nav:focus-within{width:268px}
  .site-nav:hover .site-nav__label,.site-nav:focus-within .site-nav__label{opacity:1;transform:none;transition-delay:.05s}
}

/* ===== 平板 ===== */
@media (max-width:1180px){
  .site-header__bar{padding:0 28px 0 24px;gap:16px}
  .header-tools__link{padding:8px}
  .site-footer__inner{grid-template-columns:1fr;gap:44px;padding:60px 32px 0}
  .site-footer__bar{padding:20px 32px 30px}
}

/* ===== 移动端 ===== */
@media (max-width:900px){
  :root{--rail-w:0px;--bar-h:60px}
  .rail-badge{display:none}
  .site-header__bar{padding:0 20px;gap:12px}
  .header-tools{display:none}
  .nav-toggle{display:inline-flex}
  .brand__mark{width:34px;height:34px;font-size:12px}
  .brand__name{font-size:14.5px}
  .brand__tag{display:none}
  .scroll-meter{left:0}

  .site-nav{
    top:0;left:0;right:0;bottom:0;
    width:100%;height:100vh;height:100dvh;
    padding-top:var(--bar-h);
    background:var(--teal-deep);
    border-right:0;
    z-index:60;
    overflow-y:auto;
    transform:translateX(-100%);
    opacity:0;visibility:hidden;
    transition:transform .34s var(--ease),opacity .26s linear,visibility .34s;
  }
  .site-nav[data-open]{transform:translateX(0);opacity:1;visibility:visible}
  .site-nav__list{padding:16px 0;gap:0;overflow:visible}
  .site-nav__item{border-bottom:1px solid var(--line)}
  .site-nav__link{height:66px;padding-left:20px;gap:18px;font-size:17px;border-left-width:3px}
  .site-nav__index{font-size:12px;min-width:26px}
  .site-nav__label{opacity:1;transform:none;font-size:17px;font-weight:700}
  .site-nav__foot{padding:20px;font-size:11px}
}

/* ===== 手机 ===== */
@media (max-width:640px){
  body{font-size:16px;line-height:1.7}
  .container{padding-inline:20px}
  .grid--12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__cols{grid-template-columns:1fr;gap:26px}
  .site-footer__inner{padding:48px 20px 0}
  .site-footer__bar{padding:20px 20px 32px;flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer__legal{margin-left:0;gap:16px}
  .site-footer__summary{max-width:none}
}

@media (max-width:900px) and (min-width:641px){
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js-ready [data-reveal]{opacity:1;transform:none;transition:none}
  .site-nav,.site-nav__label,.skip-link,.btn,.scroll-meter__bar{transition:none}
  .site-nav__pulse{animation:none}
  .btn:hover{transform:none}
}